One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,7,5,8,11,14)(3,6,10,13,9,12,15,16)(17,18)(19,28)(20,25)(21,26)(22,36)(23,27)(24,31)(29,38)(30,41)(32,42)(33,39)(34,40)(35,46)(37,45)(43,47)(44,48)(1,3)(2,6)(4,10)(5,9)(7,13)(8,12)(11,15)(14,16)(17,19,22,31,23,32,20,29)(18,24,25,28,27,38,36,42)(21,30,35,45,34,44,33,43)(26,37,39,41,40,47,46,48)(3,9)(6,12)(10,15)(13,16)(17,20,23,22)(18,25,27,36)(19,29,32,31)(21,33,34,35)(24,28,38,42)(26,39,40,46)(30,43,44,45)(37,41,47,48)(17,21)(18,26)(19,30)(20,33)(22,35)(23,34)(24,37)(25,39)(27,40)(28,41)(29,43)(31,45)(32,44)(36,46)(38,47)(42,48) involution — undirected(21,34)(26,40)(30,44)(33,35)(37,47)(39,46)(41,48)(43,45) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.